Press X(3), R, A, L(2), Y.

Press Y, A, B, X, B, A(2), L.

Press Y, White, Black, L, A, R(2), Y. Then choose "Abandon Mission", then "Extras", then "Replay Mission". Select a saved game and you should be able to play any level even the bonus missions. When you finish a level, you'll have to select a new level yourself to progress.

Press X, R, A, Y, Black, B, A, R.

Press A, L(2), Black, B, White, L(2).

Press Black, B, A, R(2), A, L, Black (This has to be done during gameplay.)

Press A, Y, A, Y, Black, R, A, Y.

Press L, Black, B, White(2), B, Black, L.

Press R, White, X, L, White, R(2), Y.

Press R, White, Y, A, L, B, White, X.

Press Y, A, B(2), A, B, White(2). You'll be allowed to use the Topsy Turvy bomb anytime.